Honeywell New Style Powerheads V4044C / V8044C,F Installation Guide

Honeywell New Style Powerheads V4044C / V8044C,F Installation Guide

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APPLICATION

The new-style powerheads for the V4044/V8044 motorized diverting valve consists of a motorized head and an adaptor plate with rubber ball plug. The new powerheads are field replacements for the current powerheads on Honeywell 3-way valves. These motorized diverting water valves are used mainly in central heating boilers which also supply domestic hot water. This new-style powerhead directly replaces the oldstyle powerhead. The construction of the new-style is such that the motorized head can be field replaced without draining the heating system. New powerheads can be readily recognized by the small dimple on top of the cover. Check the table on the back page to ensure the powerhead matches the diverting valve number.

SPECIFICATIONS

• End Switch Rating: 2.0 A at 250 Vac, 50 Hz.
• Power Consumption: 6 VA.
• Maximum Ambient Temperature: 50° C (122° F).
• Length Leadwire: ± 90 cm.

ATTENTION
Ensure that the pins (D) engage their mating recesses (F). Don’t secure the screws too tight!

INSTALLATION

Removing old-style powerhead from valve body (See Fig. 1, Fig. 2, and Fig. 3)

NOTE: It is not necessary to remove the valve body from the pipeline, but the system must be drained of water before beginning the installation unless isolating valves have been fitted.

1. Switch power supplies OFF.
2. Disconnect electrical leads, carefully noting the position and colour of each lead.
3. Place the manual operating lever (A) in the MAN. OPEN position. (Fig. 1).
4. Remove cover. (Fig. 2).
5. Remove the four screws (J) that secure power head (C) to the valve body (G) and remove the old-style power head (Fig. 3). Also, remove the O-ring (E) from the valve.

Removing new-style powerhead with adaptor plate from valve body (See Fig. 1, Fig. 2, and Fig. 4)

NOTE: It is not necessary to drain the system if the valve body in the pipeline is fitted with an adaptor plate.

1. Switch power supplies OFF.
2. Disconnect electrical leads carefully noting the position and colour of each lead.
3. Place the manual operating lever (A) in the MAN. OPEN position. (Fig. 1).
4. Remove cover. (Fig. 2).
5. Remove the two screws (K) that secure the head (C) to the valve body adapter assembly (G) and remove the power head from the adapter plate (H) (Fig. 4).
6. If only the head needs to be replaced, continue at point 4 of “Installing replacement head and adapter plate”.
7. Remove the four screws (L&M) that secure the adapter plate (H) to the valve body assembly (G) and take off adapter plate with rubber ball plug. Also remove O-ring (E) from the valve (Fig. 4).

Installing replacement head and adapter plate

1. Insert the new O-ring (E) into the circular slot on top of the valve body. (Fig. 4).
2. Place the adaptor plate (H) on the valve body (G) ensuring that the three guiding pins (D) engage their mating recesses (F) on the powerhead.
3. Secure the adaptor plate with the four hex-nut screws (L&M) provided – N.B. the four hex-nut screws are not identical. The screws are placed diagonally in pairs. The hex-nut screws with recessed threads and shoulder shank (M) fit in the larger holes and are used for fastening the screws (K) of the adaptor plate (Fig. 4).
4. Place the manual operating lever (A) of the replacement head in the MAN OPEN position (A, Fig. 1) and fit the head onto the valve body assembly – ensuring that the shaft seats correctly (K, Fig. 4).
5. Secure the head on the valve body adaptor assembly (G) with the two screws (K) provided.
6. Reconnect the wiring ensuring that the leads are reconnected according the colour code of the old-style powerhead.
7. Replace cover (Fig. 2).

Always refer to the electrical wiring diagram of the installation in case of possible variations.

There are no complete powerheads available as replacements for the V4044-types. There is no powerhead or complete powerhead available as replacement for V8044F1043.
*Do not connect leadwire F.

Automation and Control Solutions
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422
customer.honeywell.com

Honeywell B.V.
Laarderhoogtweg 18
1101 EA Amsterdam Z.O.
T (0 20) 5 65 69 11
F (0 20) 5 65 66 00
www.honeywell.nl

® U.S. Registered Trademark
© 2010 Honeywell International Inc.
95C-10574ED—01 T.D. Rev. 09-10
Printed in U.S.A.

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